2040655871 has 2 divisors, whose sum is σ = 2040655872. Its totient is φ = 2040655870.

The previous prime is 2040655867. The next prime is 2040655889. The reversal of 2040655871 is 1785560402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2040655871 - 2² = 2040655867 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040655831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020327935 + 1020327936.

It is an arithmetic number, because the mean of its divisors is an integer number (1020327936).

Almost surely, 2^2040655871 is an apocalyptic number.

2040655871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040655871 is an equidigital number, since it uses as much as digits as its factorization.

2040655871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2040655871 is about 45173.6191930644. The cubic root of 2040655871 is about 1268.4010445407.

The spelling of 2040655871 in words is "two billion, forty million, six hundred fifty-five thousand, eight hundred seventy-one".